CATALYTIC CRACKING OF ETHERS TO 1-OLEFINS

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The current invention provides a process in which ethers are converted into .alpha.-olefins by passage over a modified alumina catalyst. The alumina catalyst is made by treating gamma-alumina with a rare earth metal oxide such as lanthanum oxide, La2O3. The modified aluminum catalysts convert 1-methoxyoctane into 1-octene with high selectivity at high conversion rates.